From: Arve Hjønnevåg <arve@android.com>
Date: Tue, 1 May 2012 19:33:34 +0000 (+0200)
Subject: epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready
X-Git-Tag: v3.5-rc1~116^2~3^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d7e30d98939a0340022ccd49325a3d70f7e0238;p=pandora-kernel.git

epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready

When an epoll_event, that has the EPOLLWAKEUP flag set, is ready, a
wakeup_source will be active to prevent suspend. This can be used to
handle wakeup events from a driver that support poll, e.g. input, if
that driver wakes up the waitqueue passed to epoll before allowing
suspend.

Signed-off-by: Arve Hjønnevåg <arve@android.com>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---

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